Brass Investment Casting  foundry Floor drain cleanout       

1.  Technology 

(1) Technology Introduction

Sand casting, also known as sand mould casting, is a metal casting process characterized by using sand as the mold material. The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries. Over 70% of all metal castings are produced via sand casting process.

Sand casting is relatively cheap and sufficiently refractory even for steel foundry use. In addition to the sand, a suitable bonding agent (usually clay) is mixed or occurs with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop the strength and plasticity of the clay and to make the aggregate suitable for molding. The sand is typically contained in a system of frames or mold boxes known as a flask. The mold cavities and gate system are created by compacting the sand around models, or patterns, or carved directly into the sand.

(2)  Process Parameters

Process :  Resin Sand, Hot Sand, Precoated Sand, Green Sand ,Clay Sand for option.

Weight from 0.5kg to 2,000kg.

Surface Finish:  Polishing, oiled(rust-prevented), zinc-plated, chrome-plated, hot dip galvanized, sandblasting, painting, powder-coating

General Tolerance:  ISO8062-CT12

Surface Roughness:  Ra 12.5

 (3) Material Introduction

Sand casting material ranging from Gray Iron, Ductile Iron, Malleable Iron, Steel, Stainless Steel, Aluminum to Brass.

Commonly used material  :HT100,HT150,HT200,HT250,QT450-1,QT600-3 

2.  Product Introduction

Brand Name: GPMC

Specification: Customized requirement

Material: Brass

Application: Industry

Place of Origin: Shanghai, China

Payment Terms: L/C,D/A,D/P,T/T

Packaging: Outer :Non-coniferous wooden package

Inner: Carton box

Email:david@@guoleprecisemetals.com 

        Q1. What is your terms of packing?

             A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the

             goods in your branded boxes after getting your authorization letters.

             Q2. What is your terms of payment?

             A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

             Q3. What is your terms of delivery?

             A: EXW, FOB, CFR, CIF, DDU.

             Q4. How about your delivery time?

             A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the

             quantity of your order.

             Q5. Can you produce according to the samples?

             A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

             Q6. What is your sample policy?

             A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

             Q7. Do you test all your goods before delivery?

             A: Yes, we have 100% test before delivery

             Q8: How do you make our business long-term and good relationship?

             A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we

             sincerely do business and make friends with them, no matter where they come from.